Intangible Assets, Net

The following is a summary of intangible assets as of March 31, 2020 and December 31, 2019:

CustomerRelationships

OtherIntangibleAssets

Total

Cost

Balance, January 1, 2020

$

44,060

$

2,467

$

46,527

Disposal

—

(6

)

(6

)

Balance, March 31, 2020

44,060

2,461

46,521

Useful lives

10-20 years

3-5 years

Accumulated amortization

Balance, January 1, 2020

(14,833

)

(2,408

)

(17,241

)

Amortization expense

(663

)

(40

)

(703

)

Disposal

—

5

5

Balance, March 31, 2020

(15,496

)

(2,443

)

(17,939

)

Net book value

$

28,564

$

18

$

28,582

Cost

Balance, January 1, 2019

$

22,560

$

2,467

$

25,027

Acquisition of Cortina

21,500

—

21,500

Balance, December 31, 2019

44,060

2,467

46,527

Useful lives

10-20 years

3-5 years

Accumulated amortization

Balance, January 1, 2019

(12,887

)

(2,247

)

(15,134

)

Amortization expense

(1,946

)

(161

)

(2,107

)

Balance, December 31, 2019

(14,833

)

(2,408

)

(17,241

)

Net Book Value

$

29,227

$

59

$

29,286

Amortization expense related to intangible assets was $703 and $348 for the three months ended March 31, 2020 and 2019, respectively.

During the three months ended March 31, 2020, the Company wrote off other intangible assets related to a non-compete agreement with one of the principals of Jamison which was no longer in effect at March 31, 2020 with a cost of $6 and the related accumulated amortization of $5.

Amortization related to the Company’s finite life intangible assets is scheduled to be expensed over the next five years and thereafter as follows: